data: Fixes in indexing

* Show status update for every indexed translation unit and only once
* Save nodes in same order they were indexed

src/lib/data/IntermediateStorage.h

@@ -85,6 +85,7 @@ private:
 	std::string serialize(const StorageError& error) const;
 
 	std::unordered_map<std::string, StorageNode> m_nodes;
+	std::vector<StorageNode> m_nodesInOrder;
 
 	std::unordered_set<std::string> m_serializedFiles; // this is used to prevent duplicates (unique)
 	std::vector<StorageFile> m_files;
@@ -92,6 +93,7 @@ private:
 	std::vector<StorageSymbol> m_symbols;
 
 	std::unordered_map<std::string, StorageEdge> m_edges;
+	std::vector<StorageEdge> m_edgesInOrder;
 
 	std::unordered_map<std::string, StorageLocalSymbol> m_localSymbols;